condition	mean	min	max
4 h after light	7.107585	6.89577	7.3194
8 h after light	12.71705	10.2624	15.1717
12 h after light	8.549735	7.73859	9.36088
4 h after dark	10.923126666666667	8.98368	13.3861
8 h after dark	8.838049999999999	6.75926	10.1664
12 h after dark	5.739896666666667	4.62544	6.42415